401110202221 has 4 divisors (see below), whose sum is σ = 401153014944. Its totient is φ = 401067389500.

The previous prime is 401110202197. The next prime is 401110202239. The reversal of 401110202221 is 122202011104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401110202221 - 2²⁵ = 401076647789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401110202195 and 401110202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401110202291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21392305 + ... + 21411046.

It is an arithmetic number, because the mean of its divisors is an integer number (100288253736).

Almost surely, 2^401110202221 is an apocalyptic number.

It is an amenable number.

401110202221 is a deficient number, since it is larger than the sum of its proper divisors (42812723).

401110202221 is an equidigital number, since it uses as much as digits as its factorization.

401110202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42812722.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 401110202221 its reverse (122202011104), we get a palindrome (523312213325).

The spelling of 401110202221 in words is "four hundred one billion, one hundred ten million, two hundred two thousand, two hundred twenty-one".